Ecofriendly remediation technologies for wastewater contaminated with heavy metals with special focus on using water hyacinth and black tea wastes: a review

Environmental Monitoring and Assessment, Год журнала: 2021, Номер 193(7)

Опубликована: Июнь 26, 2021

Язык: Английский

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Evolution of the Olive Oil Industry along the Entire Production Chain and Related Waste Management

Energies, Год журнала: 2022, Номер 15(2), С. 465 - 465

Опубликована: Янв. 10, 2022

The production of olive oil involves the sustainable management waste produced along entire chain. This review examines developments regarding cultivation techniques, technologies, and management, highlighting goals to be achieved most reasonable prospects. results show that technology have evolved an almost final solution meet economic feasibility, keeping oil’s high quality. Continuous horizontal decanters will coexist with traditional mills in many countries old consumption traditions. High-quality products conquered markets, especially wealthiest countries. At same time, exploitation dried pomace by solvent extraction is increasingly obsolete practice. However, still looking for one or a few solutions modern society’s constraints. enhancement some experienced technologies full-scale application emerging strategies should solve this problem short–medium term. A short discussion reported on possibility unifying nature quality waste, whatever method is. Furthermore, thermochemical treatment solid wet organic disposal examined discussed.

Язык: Английский

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Remediation of Pb-contaminated soil using biochar-based slow-release P fertilizer and biomonitoring employing bioindicators

Scientific Reports, Год журнала: 2023, Номер 13(1)

Опубликована: Янв. 30, 2023

Abstract Soil contamination by Pb can result from different anthropogenic sources such as lead-based paints, gasoline, pesticides, coal burning, mining, among others. This work aimed to evaluate the potential of P-loaded biochar (Biochar-based slow-release P fertilizer) remediate a Pb-contaminated soil. In addition, we aim propose biomonitoring alternative after soil remediation. First, rice husk-derived was obtained at temperatures (450, 500, 550, and 600 °C) (raw biochars). Then, part resulting material activated. Later, raw biochars activated were immersed in saturated KH 2 PO 4 solution produce biochars. The ability materials immobilize increase bioavailability evaluated an incubation test. incorporated into doses 0.5, 1.0, 2.0%. After 45 days, samples taken biomonitor remediation process using two bioindicators: phytotoxicity test enzyme activity. Activated produced 500 °C has been found present best conditions for significantly reduced increased P. enzymatic activity correlated with decrease bioavailable but not Biomonitoring is promising evaluation soils processes.

Язык: Английский

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Biochar from grape pomace, a waste of vitivinicultural origin, is effective for root-knot nematode control

Biochar, Год журнала: 2023, Номер 5(1)

Опубликована: Май 29, 2023

Abstract Root-knot nematodes (RKNs) are obligate endoparasites that feed on their host plants to complete its life cycle, representing a major threat agriculture and economy worldwide. The development of new management strategies becomes essential as effective chemical nematicides progressively being restricted. Hence, we analysed grape pomace-derived biochars, pyrolysed at 350 °C (BC350) 700 (BC700), focusing potential for RKN control. thermal treatment pomace caused an increase in the concentration carbon plant macro- micronutrients, which were largely present water-soluble form. Synchrotron radiation-based Fourier transform infrared microspectroscopy data showed general loss carboxylic functional groups during pyrolysis, partially contributing alkalinisation both mostly BC700. Scanning electron microscopy coupled with energy-dispersive X-ray spectroscopy analysis revealed highly porous structure filled different crystals composed elements such K, Ca, Mg, P, Si or Al, could be suitable environment growth microorganisms. Biochar-derived aqueous extracts phytotoxicity tomato seedlings high concentrations, disappeared upon dilution, but no toxic effect was observed nematode’s infective stage. However, reproductive traits Meloidogyne javanica population significantly reduced (i.e. egg masses eggs per plant) washed-biochar-treated soil pots (0.75%; BC350W). Therefore, large amount waste generated after wine production can transformed into valuable product biochar, RKNs control, thus reducing problem circular economy. Graphical abstract

Язык: Английский

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Recent developments in metallic-nanoparticles-loaded biochars synthesis and use for phosphorus recovery from aqueous solutions. A critical review

Journal of Environmental Management, Год журнала: 2023, Номер 342, С. 118307 - 118307

Опубликована: Июнь 1, 2023

Язык: Английский

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